Indoor/outdoor transition points based on satellite signal strength

ABSTRACT

Systems and methods of using satellite signal strength to determine indoor/outdoor transition points for places are disclosed herein. In some example embodiments, a computer system accesses service data and sensor data for a plurality of requests for a transportation service associated with a place, with the service data comprising pick-up data indicating a pick-up location and drop-off data indicating a drop-off location, and the sensor data comprising satellite signals indicating a pick-up path or a drop-off path, with the satellite signals each having a corresponding signal strength. The computer system determines a transition geographic location for the place based on the signal strengths of the satellite signals.

CLAIM FOR PRIORITY

This application is a continuation of and claims the benefit of U.S. application Ser. No. 17/449,877, filed Oct. 4, 2021, which is a continuation of and claims the benefit of U.S. application Ser. No. 16/513,093, filed Jul. 16, 2019, which claims the benefit of priority of U.S. Application Ser. No. 62/700,180, filed Jul. 18, 2018, each of which is hereby incorporated by reference in their entireties.

TECHNICAL FIELD

Embodiments of the present disclosure relate generally to the technical field of geographic positioning for a networked computer system and, more particularly, but not by way of limitation, to systems and methods of using satellite signal strength to determine indoor/outdoor transition points for places.

BACKGROUND

A networked computer system can receive, from user devices, a request for a service. The request can include data related to a place that is to be involved in the providing of the service. For example, a user may submit a request, via the networked computer system, to be transported from a first place to a second place. The networked computer system may then transmit a geographical location of the first place and a geographical location of the second place to a device of a service provider for use in providing the service to the requester. However, although the request may include an identification of a place, the networked computer system may not have the corresponding geographical location of the place readily available. Additionally, current networked computer systems suffer from poor accuracy in predicting the actual geographical location of a place for which a user is requesting the service. For example, even though a request may include an address or a name of a place for which an address can be determined, the address of a place often does not accurately represent the precise location where the service should be provided. For example, the specific indoor/outdoor transition points for the place, such as egress locations and ingress locations, are not readily available and are technically challenging to predict.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments of the present disclosure are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like reference numbers indicate similar elements.

FIG. 1 is a block diagram of a system environment for a networked computer system, in accordance with some example embodiments.

FIG. 2 illustrates sensor data superimposed onto map data of a place, in accordance with some example embodiments.

FIG. 3 illustrates a graphical user interface (GUI) in which a provider of a service may signal that the provider has started transporting a requester, in accordance with some example embodiments.

FIG. 4 illustrates a GUI in which the provider of the service may signal that the provider has completed transporting the requester, in accordance with some example embodiments.

FIG. 5 is a time series graph plotting satellite signal strength for a client device, which may be used to identify a transition point at which the client device transitions from being outdoors to being indoors, in accordance with some example embodiments.

FIG. 6 illustrates a mapping of corresponding data for a place, in accordance with some example embodiments.

FIG. 7 illustrates transition geographic locations superimposed onto map data of a place, in accordance with some example embodiments.

FIG. 8 is a flowchart illustrating a method of determining a transition geographic location for a place using satellite signal strength, in accordance with some example embodiments.

FIG. 9 illustrates a use case in which elevation data is used to determine that a candidate transition geographic location for a place is not a transition geographic location for the place based on elevation data, in accordance with the some example embodiments.

FIG. 10 is a block diagram illustrating a mobile device, in accordance with some example embodiments.

FIG. 11 is a diagrammatic representation of a machine in the form of a computer system within which a set of instructions may be executed for causing the machine to perform any one or more of the methodologies discussed herein, according to an example embodiment.

DETAILED DESCRIPTION

The description that follows includes illustrative systems, methods, techniques, instruction sequences, and computing machine program products that embody illustrative embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide an understanding of various embodiments of the inventive subject matter. It will be evident, however, to those skilled in the art that embodiments of the inventive subject matter can be practiced without these specific details. In general, well-known instruction instances, protocols, structures, and techniques have not been shown in detail.

The present disclosure provides technical solutions for improving the accuracy of computer-implemented coordinate prediction. In some example embodiments, a technical solution involves using sensor data of mobile devices to generate one or more transition geographic locations of a place, where the sensor data includes a plurality of satellite signals indicating a path of a client device of a requester, with each one of the plurality of satellite signals having a corresponding signal strength. The transition geographic location(s) for the place is determined based on the corresponding signal strengths of the satellite signals and a satellite signal strength threshold that is configured to represent a point of transition between an indoor location and an outdoor location of the place. The predicted transition geographical location(s) of a place may then be used in servicing requests for transportation services associated with the place. One technical effect of the system and method of the present disclosure is to improve the accuracy of coordinate prediction by networked computer systems. Additionally, other technical effects will be apparent from this disclosure as well.

In some example embodiments, operations are performed by a computer system (or other machine) having a memory and at least one hardware processor, with the operations comprising: for a place, accessing corresponding service data for each one of a plurality of requests for a transportation service associated with the place, the transportation service comprising transportation of a requester of the request to or from the place, the corresponding service data comprising an identification of the place, pick-up data indicating a pick-up location where the transportation of the requester began, and drop-off data indicating a drop-off location where the transportation of the requester ended; accessing corresponding sensor data for each one of the plurality of requests, the corresponding sensor data comprising a plurality of satellite signals indicating a path of a mobile device of the requester, the path comprising a pick-up path or a drop-off path, the pick-up path ending at the pick-up location indicated by the pick-up data, the drop-off path beginning at the drop-off location indicated by the drop-off data, each one of the plurality of satellite signals having a corresponding signal strength; for each one of the plurality of requests, determining a transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding path and a satellite signal strength threshold, the satellite signal strength threshold being configured to represent a point of transition between an indoor location and an outdoor location; determining at least one transition geographic location for the place based on the transition geographic locations for the plurality of requests; and storing the at least one transition geographic location for the place in a database in association with an identification of the place.

In order to obtain the sensor data of a computing device (e.g., a mobile device) of a user (e.g., a requester or a provider), the computer system (or another computer system) requests permission from the user to track the location of the computing device before and after the trip of the requested transportation service. If the user agrees to permit the tracking of the location of the computing device before and after the trip, then such sensor data of the computing device is collected and used for further processing, as disclosed herein. In this way, the user of a computing device controls what information of the user is collected and used by the computer system, as the location of the computing device of a user is only tracked if the user knowledgeably consents to such data gathering.

In some example embodiments, the operations further comprise: receiving another request for the transportation service associated with the place from a mobile device of another requester, the other request comprising the identification of the place; identifying the transition geographic transition for the place based on a search of the database using the identification of the place; and transmitting one of the at least one transition geographic location of the place to at least one of the mobile device of the other requester and a mobile device of a provider of the transportation service of the other request.

In some example embodiments, the transportation service of the plurality of requests is for transportation of the requester of the request to the place, the determining the transition geographic location for the request comprising determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding drop-off path, one of the at least one transition geographic location for the place being stored as an ingress geographic location for the place, the transportation service of the other request comprising transportation of the other requester to the place, and the identifying the transition geographic location for the place comprising identifying the one of the at least one transition geographic transition for the place based on the transportation service of the other request comprising transportation of the other requester to the place and on the one of the at least one transition geographic location for the place being stored as the ingress geographic location for the place.

In some example embodiments, the transportation service of the plurality of requests is for transportation of the requester of the request from the place, the determining the transition geographic location for each one of the plurality of requests comprising determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding pick-up path, one of the at least one transition geographic location for the place being stored as an egress geographic location for the place, the transportation service of the other request comprising transportation of the other requester from the place, and the identifying the transition geographic location for the place comprising identifying one of the at least one transition geographic transition for the place based on the transportation service of the other request comprising transportation of the other requester from the place and on the one of the at least one transition geographic location for the place being stored as the egress geographic location for the place.

In some example embodiments, the operations further comprise selecting the provider of the transportation service of the other request from amongst a plurality of providers based on a geographic location of the mobile device of the provider and the one of the at least one transition geographic location for the place.

In some example embodiments, the operations further comprise selecting the at least one transition geographic location of the place based on at least one of a geographic location of the mobile device of the other requester and a geographic location of the mobile device of the provider, wherein the transmitting of the one of the at least one transition geographic location of the place comprises transmitting the one of the at least one transition geographic location of the place to at least one of the mobile device of the other requester and the mobile device of a provider of the transportation service of the other request for display in association with the other request for the transportation service.

In some example embodiments, the determining the transition geographic location for the request comprises determining that a candidate geographic location indicated by the path associated with the request is not the transition geographic location based on elevation data indicating an elevation of the mobile device of the requester at the candidate geographic location.

In some example embodiments, the computer system comprises a remote server.

The methods or embodiments disclosed herein may be implemented as a computer system having one or more modules (e.g., hardware modules or software modules). Such modules may be executed by one or more hardware processors of the computer system. In some example embodiments, a non-transitory machine-readable storage device can store a set of instructions that, when executed by at least one processor, causes the at least one processor to perform the operations and method steps discussed within the present disclosure.

The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description and drawings, and from the claims.

FIG. 1 is a block diagram of a system environment for a networked computer system 100, in accordance with some example embodiments. In some example embodiments, the networked computer system 100 coordinates the transportation of persons and/or goods/items for a service requester 110 (e.g., such as a rider) by a service provider 120 (e.g., a driver of a vehicle). The provider 120 uses a vehicle to provide the transportation to the requester.

In some example embodiments, the networked computer system 100 comprises any combination of one or more of a prediction module 102, a service module 104, and one or more databases 106. These modules and databases are not native components of a generic computer system, and provide structures and functions beyond generic functions of a computer system, as further described below.

In some example embodiments, the modules 102 and 104 and the database(s) 106 reside on a machine having a memory and at least one processor (not shown). In some example embodiments, the modules 102 and 104 and the database(s) 106 reside on the same machine, while in other example embodiments, one or more of modules 102 and 104 and database(s) 106 reside on separate remote machines that communicate with each other via a network (e.g., network 130). It is contemplated that other configurations are also within the scope of the present disclosure.

In some example embodiments, the requester 110 operates a client device 112 that executes a requester application 114 that communicates with the networked computer system 100. The requester operates the requester application 102 to view information about the networked computer system 100, and to make a request for service from the networked computer system 100 for a delivery or transport service (“a trip”) of the requester 110 (and, optionally, additional persons) and/or items, for example cargo needing transport. The requester application 114 determines a pick-up location within an origin location or enables the requester 110 to specify a pick-up location and/or a destination location associated with the trip. An origin location and/or a destination location may be a location inputted by the requester 110 or may correspond to the current location of the requester client device 112 as determined automatically by a location determination module (not shown) in the requester client device 112, e.g., a global positioning system (GPS) component, a wireless networking system, or a combination thereof. For purposes of simplicity, as described herein, an origin location can include a pick-up location for service (i) determined by the requester application 114 (e.g., based on the current location of the requester client device 112 using a GPS component), (ii) specified or selected by the requester 110, or (iii) determined by the networked computer system 100. In some embodiments, the networked computer system 100 recommends a pick-up location to a requester 100 based on historical trip data associated with the origin location.

According to examples herein, the requester client device 112 can transmit a set of data to the networked computer system 100 over a network 130 in response to requester input or operation of the requester application 114. Such data can be indicative of the requester's interest in potentially requesting service (e.g., before actually confirming or requesting the service). For example, the requester 110 may launch the requester application 114 and specify an origin location and/or a destination location to view information about the networked computer system 100 before making a decision on whether to request service. The requester 110 may want to view information about the average or estimated time of arrival for pick up by a provider 120, the estimated time to the destination, the price, the available service types, etc. Depending on implementation, the data can include the origin and/or destination location information, requester information (e.g., identifier), application information (e.g., version number), device identifier or type, etc. According to some examples, each time the requester 110 modifies the origin and/or destination location, the requester application 114 can generate and transmit the data to the networked computer system 100.

The network 130 may be any network that enables communication between or among machines, databases, and devices (e.g., the networked computer system 100 and the client devices 112 and 122). Accordingly, the network 130 may be a wired network, a wireless network (e.g., a mobile or cellular network), or any suitable combination thereof. The network 130 may include one or more portions that constitute a private network, a public network (e.g., the Internet), or any suitable combination thereof. Accordingly, the network 130 may include one or more portions that incorporate a local area network (LAN), a wide area network (WAN), the Internet, a mobile telephone network (e.g., a cellular network), a wired telephone network (e.g., a plain old telephone system (POTS) network), a wireless data network (e.g., WiFi network or WiMax network), or any suitable combination thereof. Any one or more portions of the network 130 may communicate information via a transmission medium. As used herein, “transmission medium” shall be taken to include any intangible medium that is capable of storing, encoding, or carrying instructions for execution by a machine, and includes digital or analog communication signals or other intangible media to facilitate communication of such software.

Once the requester 110 confirms or orders a service via the requester application 114, the requester application 114 can generate data corresponding to a request for the service through the networked computer system 100 (e.g., also referred to herein as a “trip request”). Responsive to receiving a trip request, the networked computer system 100 determines the average estimated time of arrival (ETA) at the pick-up location of providers 120 whose current location is within a threshold distance of the pick-up location (e.g., providers 120 who are all within one mile of the pickup location). In some embodiments, responsive to determining that requester's ETA is within a threshold amount of time of the average ETA of nearby available providers 120, the networked computer system 100 uses information from the trip request to match the requester 110 with an available provider 120. Depending on implementation, the trip request can include requester or device information (e.g., a requester identifier, a device identifier), a service type (e.g., vehicle type) and/or selected service option (such as described herein), an origin location, a destination location, a payment profile identifier, a desired departure time, and/or other data. The networked computer system 100 selects a provider 120 from a set of providers, such as based on the provider's current location and status (e.g., offline, online, available, etc.) and/or information from the trip request (e.g., service type, origin location, and/or destination location), to provide the service for the requester and transport the requester 110 from the origin location to the destination location. Responsive to selecting an available provider 120, the networked computer system 100 sends an invitation message to the provider client device 122 inviting the provider 120 to fulfill the trip request.

In one example embodiment, the networked computer system 100 periodically determines the requester's ETA at the pick-up location based on the topological and geospatial location of the requester client device 112. In some example embodiments, the networked computer system 100 selects the provider 120 based on a comparison of the requester's ETA and the provider's ETA at the pick-up location. For example, if the networked computer system 100 determines that the requester 110 is about three minutes away from the pick-up location, the networked computer system 100 might select a provider 120 who is also about three minutes away even if other providers 120 have a shorter ETA.

If, after matching the requester 110 with an available provider 120, the networked computer system 100 determines that the requester's ETA and the provider's ETA at the pick-up location vary by over a threshold amount of time, the networked computer system 100 can reassign the trip to another available provider 120.

The provider 120 operates a client device 122 executing a provider application 124 that communicates with the networked computer system 100 to provide information indicating whether the provider 120 is available or unavailable to provide transportation services to requesters 110. The provider application 124 can also present information about the networked computer system 100 to the provider 120, such as invitations to provide service, navigation instructions, map data, etc. In one example embodiment, the provider application 124 enables the provider 120 to provide information regarding availability of the provider 120 by logging into the networked computer system 100 and activating a setting indicating that they are currently available to provide service. The provider application 124 also provides the current location of the provider 120 or the provider client device 122 to the networked computer system 100. Depending on implementation, the current location may be a location inputted by the provider 120 or may correspond to the current location of the provider client device 122 as determined automatically by a location determination module (not shown) in the provider client device 122, e.g., a GPS component, a wireless networking system, or a combination thereof. The provider application 124 further allows a provider 120 to receive, from the networked computer system 100, an invitation message to provide a service for a requesting requester 110, and if the provider 120 accepts via input, the provider application 124 can transmit an acceptance message to the networked computer system 100. The networked computer system 100 can subsequently provide information about the provider 120 to the requester application 114. In another example embodiment, the provider application 124 can enable the provider 120 to view a list of current trip requests and to select a particular trip request to fulfill. The provider application 124 can also receive routing information from the networked computer system 100.

In some example embodiments, the requester client device 112 and provider client device 122 are portable or mobile electronic devices such as smartphones, tablet devices, wearable computing devices (e.g., smartwatches) or similar devices. Alternatively, the provider client device 122 can correspond to an on-board computing system of a vehicle. Client devices typically have one or more processors, memory, touch screen displays, wireless networking system (e.g., IEEE 802.11), cellular telephony support (e.g., LTE/GSM/UMTS/CDMA/HSDP A, etc.), and location determination capabilities. The requester client device 112 and the provider client device 122 interact with the networked computer system 100 through client applications configured to interact with the networked computer system 100. The applications 114 and 124 of the requester client device 112 and the provider client device 122, respectively, can present information received from the networked computer system 100 on a requester interface, such as a map of the geographic region, and the current location of the requester client device 112 or the provider client device 122. The applications 114 and 124 running on the requester client device 112 and the provider client device 124 can determine the current location of the device and provide the current location to the networked computer system 100.

The networked computer system 100 is configured to provide a communicative interface between the requester application 114, the provider application 124, and the various modules and databases in the networked computer system 100. The networked computer system 100 is configured to receive provider availability status information and current location information from the provider application 124 and update database(s) 106 with the availability status. The networked computer system 100 is also configured to receive trip requests from the requester application 114 and creates corresponding trip records in the database(s) 108. According to an example embodiment, a trip record corresponding to a trip request can include or be associated with a trip ID, a requester ID, an origin location, a destination location, a service type, pricing information, and/or a status indicating that the corresponding trip request has not been processed. According to one example embodiment, when a provider 120 accepts the invitation message to service the trip request for the requester 110, the trip record can be updated with the provider's information as well as the provider's location and the time when the trip request was accepted. Similarly, location and time information about the service as well as the cost for the service can be associated with the trip record.

In one example embodiment, during the trip, the networked computer system 100 receives information (e.g., periodically) from the provider application 124 indicating the location of the provider's vehicle and/or telematics information (e.g., indications of current speed, acceleration/deceleration, events, stops, and so forth). The networked computer system 100 stores the information in the database(s) 108 and can associate the information with the trip record. In some example embodiments, the networked computer system 100 periodically calculates the provider's ETA at the pick-up location and provides the provider's ETA to the requester application 114.

The networked computer system 100 determines the geospatial and topological location of the requester client device 112 in response to the requester 110 making a trip request through the requester application 114. In one example embodiment, the requester application 114 periodically transmits geospatial location information of the requester client device 112 to the networked computer system 100. The geospatial location information can correspond to a current location data point of the requester client device 112 at an instance in time. Such a location data point can be generated by a location determination module (not shown) in the requester client device 112, e.g., a GPS component, a wireless networking system, or a combination thereof.

In some example embodiments, the requester application 114 and the provider application 124 are configured to display map data indicating a specific geographical location of a place, as well as navigation instructions for the requester 110 using the requester application 114 on how to navigate (e.g., walk) to the specific geographical location of the place and navigation instructions for the provider 120 using the provider application 124 on how to navigate (e.g., drive) to the specific geographical location of the place. For example, the provider application 124 may display, on the client device 122 of the provider 120, a map that includes a graphic element that corresponds to the current location of the provider 120 or the client device 122 of the provider 120 and a graphic element that corresponds to the specific geographical location of a place associated with a service request, such as a place to pick up or drop off a requester 110 associated with the service request, as well as a route from the current location of the provider 120 or the client device 122 of the provider 120 to the specific geographical location of the place associated with the service request. Similarly, the requester application 114 may display, on the client device 112 of the requester 110, a map that includes a graphic element that corresponds to the current location of the requester 110 or the client device 112 of the requester and a graphic element that corresponds to the specific geographical location of the place associated with the service request, as well as a route from the current location of the requester 110 or the client device 112 of the requester 110 to the specific geographical location of the place associated with the service request.

The map data and the navigation instructions are generated based on the specific geographical location of the place associated with the service request. In some example embodiments, the corresponding map data and navigation instructions are generated by the requester application 114 and the provider application 124 using the geographical location of the place, which is received by the requester application 114 and the provider application 124 from the networked computer system 100. For example, the networked computer system 100 may store the geographical location of the place in association with an identifier of the place (e.g., a name of the place, an address of the place) in the database(s) 106, and then transmit the geographical location of the place to the requester application 114 and the provider application 124 for use in generating the corresponding map data and navigation instructions that are to be generated and displayer by the requester application 114 and the provider application 124. In other example embodiments, the corresponding map data and navigation instructions are generated by the networked computer system 100 using the geographical location of the place stored in the database(s) 108 of the networked computer system 100 in association with an identifier of the place (e.g., a name of the place, an address of the place), and then transmitted to the requester application 114 and the provider application 124 for display on client device 112 of the requester 110 and the client device 122 of the provider 120.

In some example embodiments, the geographical location of a place comprises a geocode. A geocode comprises a spatial representation in numerical coordinates, such as latitude and longitude, of a physical location (e.g., a physical address). Other types of representations of a physical location may additionally or alternatively be used as the geographical location in providing the features disclosed herein.

In some example embodiments, the prediction module 102 is configured to, for a place, access corresponding service data for each one of a plurality of requests for a transportation service associated with the place. The service data may be stored in and retrieved from the database(s). The transportation service may comprise transportation to the place or transportation from the place. In some example embodiments, the transportation service comprises transportation of the requester 110 of the request. However, it is contemplated that the transportation service may additionally or alternatively comprise transportation of another user, such as a friend, relative, or other acquaintance of the requester 110 of the request (e.g., when the requester submits a request for transportation service for a friend). Accordingly, although examples disclosed herein refer to the client device 112 of the requester 110 of the request, the client device of another user (not shown) may be substituted for the client device 112 of the requester 110 for embodiments in which the other user is the one who is being transported. Additionally, the client device 122 of the provider 120 may also be substituted for the client device 112 of the requester 110 for embodiments in which the transportation service is for transportation of a good rather than for transportation of a person, such as in embodiments in which the transportation service is being used for delivery of food or other products or objects.

In some example embodiments, the corresponding service data for each one of the requests comprises an identification of the place (e.g., a name or an address), pick-up data indicating a pick-up location where the transportation of the requester began (e.g., a name, an address, or a geocode), and drop-off data indicating a drop-off location where the transportation of the requester ended (e.g., a name, an address, or a geocode).

In some example embodiments, the prediction module 102 is configured to access corresponding sensor data for each one of the plurality of requests. The corresponding sensor data may comprise satellite signals indicating at least one path of the client device 112 of the requester 110. In some example embodiments, the path(s) comprise at least one of a pick-up path and a drop-off path. The pick-up path ends at the pick-up location indicated by the pick-up data, and the drop-off path begins at the drop-off location indicated by the drop-off data. In some example embodiments, the sensor data comprises a corresponding signal strength for each of the satellite signals.

FIG. 2 illustrates sensor data 200 superimposed onto map data 210 of a place 212, in accordance with some example embodiments. The map data may comprise a map representing the environment in which the place 212 resides, including surrounding streets 214, sidewalks 216, and other places 218. In some example embodiments, the corresponding sensor data 200 for each one of the plurality of requests comprises a plurality of geocodes (e.g., based on satellite signals) forming the corresponding path(s) 202 indicated by the sensor data 200. In FIG. 2 , these geocodes are represented as circles and the paths 202 are represented as lines connecting the geocodes.

Some paths 202 represent the movement of the client device 112 of the requester 110 from the place 212 to pick-up locations where the requester 110 was picked up by the provider 120 for transportation from the place 212 to another location in servicing the requests for transportation service associated with the place 212. For example, in FIG. 2 , such pick-up paths are enclosed within the dotted oval 204A. Other paths 202 represent the movement of the client device 112 of the requester 110 to the place 212 from drop-off locations where the requester 110 was dropped off by the provider in transportation to the place 212 in servicing the requests for transportation service associated with the place 212. For example, in FIG. 2 , such drop-off paths are enclosed within the dotted oval 204B.

FIG. 3 illustrates a graphical user interface (GUI) 300 in which a provider 120 of a transportation service may signal that the provider 120 has started transporting a requester 110, in accordance with some example embodiments. The GUI 300 may be generated by the provider application 124 and display an indication 310 of the geographical location of the place and an indication 320 of the geographical location of the provider 120 or the client device 122 of the provider 120. The GUI 300 may also display supplemental information, such as an identification 330 of a requester 110 to be picked up by the provider 120, an indication 340 of the amount of time until the provider 120 of the client device 122 of the provider 120 arrives at the pick-up location, and an indication 350 that the requester 110 has been notified that the provider 120 has arrived at the pick-up location. In some example embodiments, the GUI 300 comprises a selectable user interface element 360 (e.g., a button configured to be swiped or tapped by the provider 120) configured to, in response to its selection by the provider 120, trigger the transmission of a signal to the networked computer system 100 indicating that the provider 120 is starting or has started the transporting of the requester 110 in servicing the request. The networked computer system 100 may use the signal to store the geographical location of the provider 120 (e.g., the GPS coordinates of the client device 122 of the provider 120) as pick-up data indicating a pick-up location. The networked computer system 100 may alternatively use the signal to trigger a determination of the geographical location of the client device 112 of the requester 110, using the determined geographical location as pick-up data indicating the pick-up location. In some example embodiments, the pick-up location is used by the prediction module 102 as the ending of the pick-up path discussed above with respect to FIG. 2 , and the geographical location of the client device 112 of the requester 110 at a time corresponding to the submission of the request for the transportation service via the client device 112 (e.g., location of the client device 112 is determined in response to the request being submitted or received) is used by the prediction module 102 as the beginning of the pick-up path. The networked computer system 100 may track the path of the client device from the beginning of the pick-up path to the ending of the pick-up path, such as by obtaining a series of GPS coordinates of the client device 112 along the pick-up path.

FIG. 4 illustrates a GUI 400 in which the provider 120 of the transportation service may signal that the provider 120 has completed transporting the requester 110, in accordance with some example embodiments. The GUI 400 may be generated by the provider application 124 and display an indication 410 of the geographical location of the place and an indication 420 of the geographical location of the provider 120 or the client device 122 of the provider 120. The GUI 400 may also display supplemental information, such as an identification 430 of a requester 110 to be dropped off by the provider 120 and an indication 440 of the amount of time until the provider 120 of the client device 122 of the provider 120 arrives at the drop-off location. In some example embodiments, the GUI 400 comprises a selectable user interface element 460 (e.g., a button configured to be swiped or tapped by the provider 120) configured to, in response to its selection by the provider 120, trigger the transmission of a signal to the networked computer system 100 indicating that the provider 120 is completing or has completed the transporting of the requester 110 in servicing the request. The networked computer system 100 may use the signal to store the geographical location of the provider 120 (e.g., the GPS coordinates of the client device 122 of the provider 120) as drop-off data for the place indicated as the drop-off location in the request submitted by the requester 110. The networked computer system 100 may alternatively use the signal to trigger a tracking of the geographical location of the client device 112 of the requester 110 (e.g., the GPS coordinates of the client device 112 of the requester 110), using the first tracked geographical location of the client device 112 as the drop-off location. In some example embodiments, this drop-off location is used by the prediction module 102 as the beginning of the drop-off path discussed above with respect to FIG. 2 . The prediction module 102 may determine the ending of the drop-off path by determining a geographical location of the client device 112 at a predetermined amount of time after the transmission of the signal to the networked computer system 100 indicating that the provider 120 is completing or has completed the transporting of the requester 110 in servicing the request. The prediction module 102 may alternatively determine the ending of the drop-off path by determining a geographical location of the client device 112 at point at which a strength of a GPS signal from the client device 112 is determined to be below a minimum threshold level of strength. In some example embodiments, the prediction module 120 interprets such a low level of strength of the GPS signal as an indication that the client device 112 has entered a building structure of the place for which the transportation service was requested.

In some example embodiments, the pick-up data corresponds to geographical locations of the client device 112 of the requester 110 when the requester 110 indicates, via the requester application 114 on the client device 112, that the provider has started transporting the requester 110 in servicing a request associated with the place 212 (e.g., the provider 120 has picked up the requester 110 at the place 212). Similarly, in some example embodiments, the drop-off data of the service data corresponds to geographical locations of the client device 112 of the requester 110 when the requester 110 indicates, via the requester application 114 on the client device 112, that the provider has completed transporting the requester 110 in servicing a request associated with the place 212 (e.g., the provider 120 has dropped off the requester 110 at the place 212). The requester 110 may signal that the provider 120 is starting or has started transporting the requester 110 and may signal that the provider 120 is completing or has completed transporting the requester via a selectable user interface element displayed on a GUI via the requester application 114 on the client device 112 of the requester 110, similar to how the provider 120 may signal such service-starting points and service-completing points discussed above.

In some example embodiments, the prediction module 102 generates and stores predicted geographical locations for a plurality of places 210 in order to build a comprehensive dataset of all places 210 everywhere with accurate names, addresses, and geographical locations. The stored predicted geographical locations may then be used by the networked computer system 100 to provide map data and navigation instructions on the respective client devices 112 and 122 of the requester 110 and the provider 120, as previously discussed above with respect to FIG. 1 .

In some cases, it may be desirable to provide one or more specific geographical locations for a place that correspond to one or more specific points where the requester 110 may transition from being inside of the place 212 to being outside of the place 212, which is referred to as an egress or exit location, as well as where the requester 110 may transition from being outside of the place 212 to being inside of the place 212, which is referred to as an ingress or entrance location. For example, in a situation in which the requester 110 is requesting to be picked-up from the place 212, it is helpful to have a specific egress location for the place 212 that can be provided to the requester 110 and to the provider 120, rather than a generalized location for the entire place 212. Similarly, in a situation in which the requester 110 is requesting to be dropped-off at the place 212, it is helpful to have a specific ingress location for the place 212 that can be provided to the requester 110 and to the provider 120, rather than a generalized location for the entire place 212.

In some example embodiments, the prediction module 104 is configured to generate at least one transition geographic location for the place 212 using the paths indicated by the sensor data of the plurality of requests associated with the place 212, and to store the predicted transition geographic location(s) in the database(s) 106 in association with an identification of the place 212. The transition geographical location(s) of the place 212 may comprise at least one geocode. However, the transition geographical location(s) of the place 212 may be generated and stored in other forms as well.

In some example embodiments, the prediction module 102 accesses corresponding service data for each one of a plurality of requests for a transportation service associated with the place. The transportation service comprises transportation of a requester 110 of the request to or from the place 212. The corresponding service data of each request comprises an identification of the place 212, pick-up data indicating a pick-up location where the transportation of the requester 110 began, and drop-off data indicating a drop-off location where the transportation of the requester 110 ended.

In some example embodiments, the prediction module 102 also accesses corresponding sensor data for each one of the plurality of requests. The corresponding sensor data of each request comprises a plurality of satellite signals indicating a path of a mobile device, such as the client device 112, of the requester 110. For each request, the path comprising a pick-up path or a drop-off path. The pick-up path ends at the pick-up location indicated by the pick-up data, and the drop-off path begins at the drop-off location indicated by the drop-off data. Each one of the plurality of satellite signals has a corresponding signal strength.

In some example embodiments, the prediction module 102 determines a corresponding transition geographic location for each one of the requests based on the corresponding signal strengths of the satellite signals indicating the corresponding path for the request and a satellite signal strength threshold. The satellite signal strength threshold is configured to represent a point of transition between an indoor location and an outdoor location.

Global Navigation Satellite Systems (GNSS) provide location estimates of a GNSS receiver, such as the client device 112 or any other mobile device, with varying degrees of accuracy, depending on the propagation environment around the GNSS receiver. In particular, when the GNSS receiver is indoors, the signal strengths from most GNSS satellites is too low for an accurate positioning estimate to be computed. In such settings, the client device 112 may employ other sources of positioning, such as WiFi or cellular networks, providing a location estimate which is coarser than what would be provided by GNSS under favorable conditions (e.g., outdoor settings with relatively clear views of the satellites). However, GNSS satellite signal strengths, or more precisely, the Signal-to-Noise Ratios (SNRs) output by the GNSS receiver, provide valuable information even when they are too low to permit accurate GNSS-based positioning. In some example embodiments, the prediction module 102 employs a technique for deriving geometric cues regarding the locations of the client device 112 from satellite signal strengths alone, such as to estimate the probability that the client device 112 is indoors. Furthermore, tagging crowdsourced GNSS data with these geometric cues can be used to infer specific characteristics of the environment. For example, in a ridesharing context, aggregated and anonymized rider location traces associated with the place 212 (e.g., a mall or an office building), can be used to infer the geographic locations of ingresses and egresses from the place 212 using indoor-outdoor transitions estimated from satellite signal strengths.

FIG. 5 is a time series graph 500 plotting satellite signal strength for a client device 112, which may be used to identify a transition point at which the client device transitions from being outdoors to being indoors, in accordance with some example embodiments. The time series graph 500 shows corresponding signal strength for the client device 112 as the client device 112, over time, moves from a location outdoors (e.g., outside of a building structure) to a location indoors (e.g., inside of a building structure). The transition point may be determined in a variety of ways. In some example embodiments, the prediction module 102 determines the transition point to be the point at which the signal strength begins to decrease at a rate that satisfies a minimum threshold. For example, in FIG. 12 , a transition point 1210 is identified based on the transition point 1210 being the point at which the signal strength begins to drop precipitously. In some example embodiments, the prediction module 102 determines the transition point to be the point at which the signal strength stops decreasing at a rate that satisfies a minimum threshold or levels off. For example, in FIG. 5 , a transition point 520 is identified based on the transition point 520 being the point at which the signal strength stops dropping precipitously and instead levels off. In some example embodiments, the prediction module 102 determines the transition point to be a point in between the point at which the signal strength begins to decrease at a rate that satisfies a minimum threshold and a point at which the signal strength stops decreasing at a rate that satisfies a minimum threshold or levels off, such as a point in the middle of these two points (e.g., halfway between these two points). For example, in FIG. 5 , a transition point 530 is identified based on the transition point 530 being halfway between the transition point 510 and the transition point 520. It is contemplated that the prediction module 102 may determine a transition point in other ways as well.

Furthermore, a reversed graph of the time series graph 500 may be used to identify a transition point at which the client device transitions from being indoors to being outdoors, in accordance with some example embodiments. In some example embodiments, the sensor data of a pick-up path for a place 212 is used to determine an egress transition point and thereby an egress geographic location of the place 212, while sensor data of a drop-off path for the place 212 is used to determine an ingress transition point and thereby an ingress geographic location of the place.

In some example embodiments, the prediction module 102 is configured identify a transition point, as discussed above, and use the GPS data of the client device 112 that corresponds to that transition point to determine a transition geographic location for the place 212, such as egress geographic location for the place 212 or an ingress geographic location for the place 212. For example, the prediction module 102 may identify the GPS location of the client device 112 that corresponds to the time at which the client device 112 was at the transition point, and then assign that GPS location that corresponds to the transition point as the egress geographic location or the ingress geographic location.

In some example embodiments, the prediction module 102 is configured to determine a corresponding transition geographic location for each one of the plurality of requests associated with the place 212, as discussed above, and then determine a transition geographic location for the place 212 based on the transition geographic locations for the plurality of requests associated with the place 212. In this respect, transition point determinations for multiple requests associated with the place 212 are used to improve the accuracy of overall transition point determination for the place 212.

In some example embodiments, the prediction module 102 makes the transition point determinations discussed above using an algorithm that either predicts the probability that a satellite signal strength corresponds to an indoor location or predicts the probability that a satellite signal strength corresponds to an outdoor location. For example, the algorithm can predict the indoor probability pr(indoors) from a GNSS satellite constellation and the SNR's. In one such example, for each satellite SNR observation, the prediction module 102 computes the probability of this satellite being blocked based on the satellite SNRs, such as by using the following model: log[Pr[not visible]/Pr[visible]]=max(−a, min(a, b*(SNR_dB−c)))*cos(elevation). The cos(elevation) term bestows an elevation dependent slope and max confidence for the SNR model. For each time instant, the prediction module 102 partitions the entire satellite constellation into 5 azimuth and 2 elevation slices (10 slices in the cartesian product). The elevation slice is made to give less weight to the horizon. The prediction module 102 then assigns the min of log[Pr[not visible]/Pr[visible]] as the reading for the satellite not being visible for each slice (min can be interpreted as a logical OR). Finally, the prediction module 102 sums the likelihoods over the 10 slices to arrive at the probability of being indoors pr(indoors). Other ways and algorithms for predicting the indoor probability or outdoor probability are also within the scope of the present disclosure.

In some example embodiments, the prediction module 102 uses a heuristic to identify egress points from trips that begin from a place 212. This heuristic looks for indoor to outdoor transitions from pr(indoors), and then clusters this set of transition points. An analogous algorithm for identifying candidate egress points can be derived for ingress points using trips which end at or in the place 212. In one such example algorithm, the prediction module 102 chooses a threshold for pr(indoors). For example, the rider is indoors if pr(indoors)>threshold, and the rider is outdoors if pr(indoors)<=threshold. As an alternative to the threshold operation, the prediction module 102 uses a conditional random field (CRF) model or a Hidden Markov Model (HMM) to determine the indoor/outdoor state of a trip. The prediction module 102 then identifies the indoor/outdoor transition points for each trip from this labelled GPS trace. These identified transition points are used as candidate transition points (e.g., candidate egress points). The prediction module 102 clusters all of the candidate transition points, such as by using a variable centroids algorithm (e.g., bisecting k-means with a vector quantization stopping criterion or density-based spatial clustering of applications with noise). The prediction module 102 then filters the clusters by the number of candidate transition points associated with the centroid to determine the transition point for the place 212.

Coordinate prediction is susceptible to imprecision due to GPS errors, as well as activity of the requester 110 before being picked up and after being dropped off. Therefore, in order to solve this technical problem of imprecise coordinate prediction, the prediction module 102 may employ preprocessing and filtering techniques. In some example embodiments, the prediction module 102 is configured to condition the use of the paths in generating the at least one predicted geographical location on a determination that an amount of the service data or the sensor data for the place 212 satisfies a minimum threshold amount, such that the prediction module 102 only uses the paths in generating the at least one predicted geographical location if it is determined by the prediction module 102 that the amount of service data and/or sensor data for the place 212 satisfied the minimum threshold amount. In some example embodiments, the prediction module 102 runs a particle filter on the sensor data to remove noise that could lead to imprecise coordinate prediction.

In some example embodiments, the prediction module 102 is configured to apply at least one clustering algorithm on the paths indicated by the sensor data of the plurality of request in generating the transition geographic locations. The clustering algorithm(s) may include cluster analysis, grouping a set of objects in such a way that objects in the same group or cluster are more similar to each other than to those in other groups or clusters. The clustering algorithm(s) may include a centroid-based clustering or k-means clustering. However, other types of clustering algorithms may also be used.

In some example embodiments, the prediction module 102 is configured to apply the clustering algorithm(s) to determine a peak concentration area or point from among the candidate transition points. This determined area or point of concentration can be used by the prediction module 102 to determine a transition geographic location for the place 212. For example, the prediction module 102 may assign the corresponding geocode of the point of concentration as the transition geographic location for the place 212.

In some example embodiments, the transition geographical location of the place 212 corresponds to a centroid of the candidate transition locations. For example, the prediction module 102 may determine the centroid of the candidate transition points of the requests associated with the place 212, and then identify the centroid as the transition geographical location of the place 212.

In some example embodiments, the sensor data is stored in association with an identification of the place 212 for subsequent retrieval and processing by the prediction module 102 in generating the transition locations, and the generated transition locations are stored in association with the identification of the place 212 for subsequent retrieval and processing by the service module 104 in providing navigation information to a requester 110 or a provider 120 for a transportation service associated with the place 212.

FIG. 6 illustrates a mapping 600 of corresponding data for a place 212, in accordance with some example embodiments. This mapping 600 may be stored in the database(s) 106. As seen in FIG. 6 , the mapping 600 comprises an identification of requests (e.g., REQUEST-1, REQUEST-2, . . . ) and sensor data associated with an identifier of the place 212 to which they correspond (e.g., ACME CORP.). The sensor data comprises geographical locations of paths associated with the requests (e.g., GEOCODE-1 FOR PICK-UP PATH, GEOCODE-2 FOR PICK-UP PATH, . . . ), as well as the corresponding signal strengths (e.g., SNR-1, SNR-2, . . . ) for each signal on which the geographical locations of the paths are based. In some example embodiments, the mapping 600 also comprises predicted transition geographical locations for each request (e.g., EGRESS LOCATION FOR REQUEST-1, EGRESS LOCATION FOR REQUEST-2) that have been generated by the prediction module 102 for the place 212 based on the sensor data associated with the request involving the place 212, as well as the predicted transition geographical locations for the place 212 (e.g., EGRESS LOCATION FOR PLACE) based on the predicted transition geographical locations for the requests associated with the place 212. Although FIG. 6 only shows sensor data for pick-up paths and predicted egress geographical locations, the mapping 600 may similarly include sensor data for drop-off paths and predicted ingress geographical locations. In some example embodiments, the predicted transition geographical locations for the place 212 are stored in association with the identifier of the place 212 for which they were generated and are available for later retrieval and use by the networked computer system 100 in servicing a request for a transportation service associated with the place 212.

In some example embodiments, the prediction module 102 is configured to generate an ingress geographic location for the place 212 using the drop-off paths indicated by the sensor data and excluding the pick-up paths indicated by the sensor data, and generate an egress geographic location for the place 212 using the pick-up paths indicated by the sensor data and excluding the drop-off paths indicated by the sensor data, and then store the ingress geographic location as an ingress attribute or a drop-off attribute associated with the identification of the place 212 in the database(s) 106 and store the egress geographic location as an egress attribute or a pick-up attribute associated with the identification of the place 212 in the database(s) 106, as seen in FIG. 6 .

In some example embodiments, the service module 104 is configured to receiving a request for the transportation service associated with the place 212 from the client device 112 of another requester 110, with the request comprising an identification of the place 212. The service module 104 identifies the transition geographical location of the place 212 stored in the database(s) 106 based on a search of the database(s) 106 using the identification of the place 212, such as by matching the identification of the place 212 from the request with a corresponding identification of the place 212 in the database(s) 106, and then transmits the identified transition geographical location of the place 212 to one or more of the client device 112 of the other requester 110 and the client device 122 of another provider 120 of the transportation service of the request.

In some example embodiments, the request comprises an indication of the place 212 as a destination, and the transportation service comprises transportation of the requester 110 of the request to the place 212. The service module 104 accesses the ingress attribute (or the drop-off attribute) associated with the identification of the place 212 based on the indication of the place 212 as a destination, identifies the ingress geographic location based on the accessing of the ingress attribute, and transmits the ingress geographical location of the place 212 to one or more of the client device 112 of the requester 110 and the client device 122 of the provider 120 of the transportation service of the request for display in association with the request. For example, the ingress geographical location of the place 212 may be used to display navigation instructions or guidance on the client device 112 and on the client device 122.

In some example embodiments, the request comprises an indication of the place 212 as an origin, and the other transportation service comprises transportation of the requester 110 of the request from the place 212. The service module 104 accesses the egress attribute (or the pick-up attribute) associated with the identification of the place 212 based on the indication of the place 212 as an origin, identifies the egress geographic location based on the accessing the egress attribute, and transmits the egress geographical location of the place 212 to one or more of the client device 112 of the requester 110 and the client device 122 of the provider 120 of the transportation service of the request for display in association with the request. For example, the egress geographical location of the place 212 may be used to display navigation instructions or guidance on the client device 112 and on the client device 122.

FIG. 7 illustrates transition geographic locations 710 superimposed onto map data 210 of a place 212, in accordance with some example embodiments. In FIG. 7 , the transition geographic locations 710 comprise an egress geographic location 710, which has been determined based on the pick-up paths 204A in FIG. 2 and their corresponding satellite signal strengths, and an ingress geographic location 710B, which has been determined based on the drop-off paths 204B in FIG. 2 and their corresponding satellite signal strengths.

FIG. 8 is a flowchart illustrating a method 1100 of determining a transition geographic location for the place 212 using satellite signal strength, in accordance with some example embodiments. The method 800 can be performed by processing logic that can comprise hardware (e.g., circuitry, dedicated logic, programmable logic, microcode, etc.), software (e.g., instructions run on a processing device), or a combination thereof. In one example embodiment, the method 800 is performed by the networked computer system 100 of FIG. 1 , or any combination of one or more of its components or modules (e.g., prediction module 102, service module 104), as described above.

At operation 810, the prediction module 102, for a place 212, accesses corresponding service data for each one of a plurality of requests for a transportation service associated with the place 212. In some example embodiments, the transportation service comprises transportation of a requester 110 of the request to or from the place 212, and the corresponding service data comprises an identification of the place 212, pick-up data indicating a pick-up location where the transportation of the requester 110 began, and drop-off data indicating a drop-off location where the transportation of the requester 110 ended.

At operation 820, the prediction module 102 accesses corresponding sensor data for each one of the plurality of requests. In some example embodiments, the corresponding sensor data comprises a plurality of satellite signals indicating a path of a mobile device, or other client device 112, of the requester 110. The path comprises a pick-up path ending at the pick-up location indicated by the pick-up data or a drop-off path beginning at the drop-off location indicated by the drop-off data. Each one of the plurality of satellite signals has a corresponding signal strength.

At operation 830, the prediction module 102, for each one of the plurality of requests, determines a transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding path and a threshold satellite signal strength. The threshold satellite signal strength is configured to represent a point of transition between an indoor location and an outdoor location. In some example embodiments, the determination of the transition geographic location for the request comprises determining that a candidate geographic location indicated by the path associated with the request is not the transition geographic location based on elevation data indicating an elevation of the mobile device of the requester at the candidate geographic location.

At operation 840, the prediction module 102 determines a transition geographic location for the place 212 based on the transition geographic locations for the plurality of requests. In some example embodiments, the prediction module 102 uses a clustering algorithm and a centroid of the transition geographic locations for the plurality of requests to determine the transition geographic location for the place 212.

At operation 850, the prediction module 102 stores the transition geographic location for the place 212 in a database in association with an identification of the place 212. In some example embodiments, the transition geographic location for the place 212 is stored with metadata identifying whether the transition geographic location is an egress geographic location or an ingress geographic location in order to help the service module 104 select the appropriate transition geographic location for the place 212 to use in servicing another request associated with the place 212. For example, in situations in which two transition geographic locations, an egress location and an ingress location, are stored in association with the place, the service module 104 selects the egress geographic location when servicing a request for transportation from the place 212, and the service module 104 selects the ingress geographic location when servicing a request for transportation to the place 212.

At operation 860, the service module 104 receives another request for the transportation service associated with the place 212 from a mobile device, or another client device 112, of another requester 110. In some example embodiments, the transportation service comprises transportation of the other requester 110 of the request to or from the place 212, and the other request comprises the identification of the place 212.

At operation 870, the service module 104 identifies the transition geographic transition for the place 212 based on a search of the database using the identification of the place 212. In some example embodiments, in situations in which an egress location and an ingress location are stored in association with the place 212, the service module 104 selects the egress geographic location when the request is for transportation from the place 212, and the service module 104 selects the ingress geographic location when the request is for transportation to the place 212.

At operation 880, the service module 104 transmits the transition geographic location of the place 212 to one or more of the mobile device of the other requester 110 and a mobile device of a provider 120 of the transportation service of the other request. For example, the service module 104 may transmit the transition geographic location of the place 212 along with or as part of navigation instructions to the client device 112 of the other requester 110 or to the client device 122 of the other provider 120. In some example embodiments, the service module 104 uses the transition geographic location of the place 212 to select which provider 120 to use to service the other request, such as by selecting the provider 120 of the transportation service of the other request from amongst a plurality of providers 120 based on a geographic location of the client device 122 of the provider 120 and the transition geographic location for the place 212, for example, by finding the provider 120 with the client device 122 that is closest to the transition geographic location or that will take the shortest amount of time to travel to the transition geographic location.

In some example embodiments, when there are multiple transition geographic locations for the place 212, the service module 104 selects one of the transition geographic locations of the place 212 based on one or more of a geographic location of the client device 112 of the other requester 110 and a geographic location of the client device 122 of the other provider 120, such as by selecting the transition geographic location of the place 212 that is the closest to the client device 112 of the other requester 110 or selecting the transition geographic location that is the closest to the client device 122 of the other provider 120. The service module 104 then transmits the selected transition geographic location of the place 212 to one or more of the client device 112 of the other requester 110 and the client device 122 of the other provider 120 of the transportation service of the other request for display in association with the other request for the transportation service. For example, the service module 104 may transmit the transition geographic location of the place 212 along with or as part of navigation instructions to the client device 112 of the other requester 110 or to the client device 122 of the other provider 120.

It is contemplated that any of the other features described within the present disclosure can be incorporated into the method 800.

A technical challenge arises in situations in which a particular geographic location is incorrectly identified as a transition geographic location based on corresponding signal strength data. For example, in situations in which the client device 112 is located near a window on a second level or higher of a building, the corresponding signal strength for that particular location may cause the prediction module 102 to incorrectly identify that particular location as a transition geographic location, even though the second level window may not be desirable as an egress geographic location, an ingress geographic location, or any other type of transition geographic location. Therefore, in some example embodiments, the prediction module 102 is configured to correct an initial determination of a particular geographic location being a transition geographic location based on elevation data.

FIG. 9 illustrates a use case in which elevation data is used to determine that a candidate transition geographic location for the place 212 is not a transition geographic location for the place 212 based on elevation data, in accordance with the some example embodiments. FIG. 9 shows three different requesters 110-1, 110-2, and 110-3 with their respective client devices 112-1, 112-2, and 112-3 positioned at different locations with respect to the place 212. In FIG. 9 , the place 212 comprises a two-story building, with the requester 110-1 and the corresponding client device 112-1 positioned at a geographic location outside of the building, the requester 110-2 and the corresponding client device 112-2 positioned at a geographic location inside the building on the first level of the building, and the requester 110-3 and the corresponding client device 112-3 positioned at a geographic location inside the building on the second level of the building next to a window 930 of the building.

In one example, the prediction module 102 uses the satellite signal strengths between a plurality of satellites 920 and each one of the client devices 112 to determine whether each one of the client devices 112 is positioned at a transition geographic location for the place 212, such as by using the techniques discussed herein with respect to determining a transition geographic location based on satellite signal strength data. In the example shown in FIG. 9 , the client device 112-1 of the requester 110-1 is positioned outside of the place 212 at a geographic location where all three satellites 920-1, 920-2, and 920-3 are visible, as indicated in FIG. 9 by the dotted lines from the satellites 920-1, 920-2, and 920-3 to the client device 112-1. The client device 112-2 of the requester 110-2 is positioned inside of the place 212 at a geographic location where none of the three satellites 920-1, 920-2, and 920-3 are visible, as indicated in FIG. 9 by no dotted lines from the satellites 920-1, 920-2, and 920-3 to the client device 112-2. The client device 112-3 of the requester 110-3 is positioned outside of the place 212 at a geographic location where two of the three satellites 920-1, 920-2, and 920-3 are visible, as indicated in FIG. 9 by the dotted lines from the satellites 920-1 and 920-2, but not 920-3, to the client device 112-3. Even though the satellite signal strength data corresponding to the geographic location of the client device 112-3 may satisfy the threshold satellite signal strength representing a point of transition between an indoor location and an outdoor location of the place 212 due the fact that the client device 112-3 is positioned next to the window 920, the prediction module 102 uses elevation data of the client device 112-3 at that geographic location, such as elevation data from a barometer or altimeter on the client device 112-3, to determine that the client device 112-3 is on the second level of the place 212 at that geographic location, and therefore concludes that the geographic location should not be identified as an egress geographic location, an ingress geographic location, or another type of transition geographic location, or concludes that the geographic location should not be used in determining such transition geographic location.

It is contemplated that any features of any embodiments disclosed herein can be combined with any other features of any other embodiments disclosed herein. Accordingly, these any such hybrid embodiments are within the scope of the present disclosure.

Example Mobile Device

FIG. 10 is a block diagram illustrating a mobile device 1000, according to an example embodiment. The mobile device 1000 can include a processor 1002. The processor 1002 can be any of a variety of different types of commercially available processors suitable for mobile devices 1000 (for example, an XScale architecture microprocessor, a Microprocessor without Interlocked Pipeline Stages (MIPS) architecture processor, or another type of processor). A memory 1004, such as a random access memory (RAM), a Flash memory, or other type of memory, is typically accessible to the processor 1002. The memory 1004 can be adapted to store an operating system (OS) 1006, as well as application programs 1008, such as a mobile location-enabled application that can provide location-based services (LBSs) to a user. The processor 1002 can be coupled, either directly or via appropriate intermediary hardware, to a display 1010 and to one or more input/output (I/O) devices 1012, such as a keypad, a touch panel sensor, a microphone, and the like. Similarly, in some embodiments, the processor 1002 can be coupled to a transceiver 1014 that interfaces with an antenna 1016. The transceiver 1014 can be configured to both transmit and receive cellular network signals, wireless data signals, or other types of signals via the antenna 1016, depending on the nature of the mobile device 1000. Further, in some configurations, a GPS receiver 1018 can also make use of the antenna 1016 to receive GPS signals.

Modules, Components and Logic

Certain embodiments are described herein as including logic or a number of components, modules, or mechanisms. Modules may constitute either software modules (e.g., code embodied (1) on a non-transitory machine-readable medium or (2) in a transmission signal) or hardware-implemented modules. A hardware-implemented module is tangible unit capable of performing certain operations and may be configured or arranged in a certain manner. In example embodiments, one or more computer systems (e.g., a standalone, client or server computer system) or one or more processors may be configured by software (e.g., an application or application portion) as a hardware-implemented module that operates to perform certain operations as described herein.

In various embodiments, a hardware-implemented module may be implemented mechanically or electronically. For example, a hardware-implemented module may comprise dedicated circuitry or logic that is permanently configured (e.g., as a special-purpose processor, such as a field programmable gate array (FPGA) or an application-specific integrated circuit (ASIC)) to perform certain operations. A hardware-implemented module may also comprise programmable logic or circuitry (e.g., as encompassed within a programmable processor) that is temporarily configured by software to perform certain operations. It will be appreciated that the decision to implement a hardware-implemented module mechanically, in dedicated and permanently configured circuitry, or in temporarily configured circuitry (e.g., configured by software) may be driven by cost and time considerations.

Accordingly, the term “hardware-implemented module” should be understood to encompass a tangible entity, be that an entity that is physically constructed, permanently configured (e.g., hardwired) or temporarily or transitorily configured (e.g., programmed) to operate in a certain manner and/or to perform certain operations described herein. Considering embodiments in which hardware-implemented modules are temporarily configured (e.g., programmed), each of the hardware-implemented modules need not be configured or instantiated at any one instance in time. For example, where the hardware-implemented modules comprise a processor configured using software, the processor may be configured as respective different hardware-implemented modules at different times. Software may accordingly configure a processor, for example, to constitute a particular hardware-implemented module at one instance of time and to constitute a different hardware-implemented module at a different instance of time.

Hardware-implemented modules can provide information to, and receive information from, other hardware-implemented modules. Accordingly, the described hardware-implemented modules may be regarded as being communicatively coupled. Where multiple of such hardware-implemented modules exist contemporaneously, communications may be achieved through signal transmission (e.g., over appropriate circuits and buses) that connect the hardware-implemented modules. In embodiments in which multiple hardware-implemented modules are configured or instantiated at different times, communications between such hardware-implemented modules may be achieved, for example, through the storage and retrieval of information in memory structures to which the multiple hardware-implemented modules have access. For example, one hardware-implemented module may perform an operation, and store the output of that operation in a memory device to which it is communicatively coupled. A further hardware-implemented module may then, at a later time, access the memory device to retrieve and process the stored output. Hardware-implemented modules may also initiate communications with input or output devices, and can operate on a resource (e.g., a collection of information).

The various operations of example methods described herein may be performed, at least partially, by one or more processors that are temporarily configured (e.g., by software) or permanently configured to perform the relevant operations. Whether temporarily or permanently configured, such processors may constitute processor-implemented modules that operate to perform one or more operations or functions. The modules referred to herein may, in some example embodiments, comprise processor-implemented modules.

Similarly, the methods described herein may be at least partially processor-implemented. For example, at least some of the operations of a method may be performed by one or more processors or processor-implemented modules. The performance of certain of the operations may be distributed among the one or more processors, not only residing within a single machine, but deployed across a number of machines. In some example embodiments, the processor or processors may be located in a single location (e.g., within a home environment, an office environment or as a server farm), while in other embodiments the processors may be distributed across a number of locations.

The one or more processors may also operate to support performance of the relevant operations in a “cloud computing” environment or as a “software as a service” (SaaS). For example, at least some of the operations may be performed by a group of computers (as examples of machines including processors), these operations being accessible via a network (e.g., the Internet) and via one or more appropriate interfaces (e.g., Application Program Interfaces (APIs).)

Electronic Apparatus and System

Example embodiments may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or in combinations of them. Example embodiments may be implemented using a computer program product, e.g., a computer program tangibly embodied in an information carrier, e.g., in a machine-readable medium for execution by, or to control the operation of, data processing apparatus, e.g., a programmable processor, a computer, or multiple computers.

A computer program can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as a module, subroutine, or other unit suitable for use in a computing environment. A computer program can be deployed to be executed on one computer or on multiple computers at one site or distributed across multiple sites and interconnected by a communication network.

In example embodiments, operations may be performed by one or more programmable processors executing a computer program to perform functions by operating on input data and generating output. Method operations can also be performed by, and apparatus of example embodiments may be implemented as, special purpose logic circuitry, e.g., a field programmable gate array (FPGA) or an application-specific integrated circuit (ASIC).

The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. In embodiments deploying a programmable computing system, it will be appreciated that both hardware and software architectures merit consideration. Specifically, it will be appreciated that the choice of whether to implement certain functionality in permanently configured hardware (e.g., an ASIC), in temporarily configured hardware (e.g., a combination of software and a programmable processor), or a combination of permanently and temporarily configured hardware may be a design choice. Below are set out hardware (e.g., machine) and software architectures that may be deployed, in various example embodiments.

Example Machine Architecture and Machine-Readable Medium

FIG. 11 is a block diagram of an example computer system 1100 on which methodologies described herein may be executed, in accordance with an example embodiment. In alternative embodiments, the machine operates as a standalone device or may be connected (e.g., networked) to other machines. In a networked deployment, the machine may operate in the capacity of a server or a client machine in server-client network environment, or as a peer machine in a peer-to-peer (or distributed) network environment. The machine may be a personal computer (PC), a tablet PC, a set-top box (STB), a Personal Digital Assistant (PDA), a cellular telephone, a web appliance, a network router, switch or bridge, or any machine capable of executing instructions (sequential or otherwise) that specify actions to be taken by that machine. Further, while only a single machine is illustrated, the term “machine” shall also be taken to include any collection of machines that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein.

The example computer system 1100 includes a processor 1102 (e.g., a central processing unit (CPU), a graphics processing unit (GPU) or both), a main memory 1104 and a static memory 1106, which communicate with each other via a bus 1108. The computer system 1100 may further include a graphics display unit 1110 (e.g., a liquid crystal display (LCD) or a cathode ray tube (CRT)). The computer system 1100 also includes an alphanumeric input device 1112 (e.g., a keyboard or a touch-sensitive display screen), a user interface (UI) navigation device 1114 (e.g., a mouse), a storage unit 1116, a signal generation device 1118 (e.g., a speaker) and a network interface device 1120.

Machine-Readable Medium

The storage unit 1116 includes a machine-readable medium 1122 on which is stored one or more sets of instructions and data structures (e.g., software) 1124 embodying or utilized by any one or more of the methodologies or functions described herein. The instructions 1124 may also reside, completely or at least partially, within the main memory 1104 and/or within the processor 1102 during execution thereof by the computer system 1100, the main memory 1104 and the processor 1102 also constituting machine-readable media.

While the machine-readable medium 1122 is shown in an example embodiment to be a single medium, the term “machine-readable medium” may include a single medium or multiple media (e.g., a centralized or distributed database, and/or associated caches and servers) that store the one or more instructions 1124 or data structures. The term “machine-readable medium” shall also be taken to include any tangible medium that is capable of storing, encoding or carrying instructions (e.g., instructions 1124) for execution by the machine and that cause the machine to perform any one or more of the methodologies of the present disclosure, or that is capable of storing, encoding or carrying data structures utilized by or associated with such instructions. The term “machine-readable medium” shall accordingly be taken to include, but not be limited to, solid-state memories, and optical and magnetic media. Specific examples of machine-readable media include non-volatile memory, including by way of example semiconductor memory devices, e.g., Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), and flash memory devices; magnetic disks such as internal hard disks and removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks.

Transmission Medium

The instructions 1124 may further be transmitted or received over a communications network 1126 using a transmission medium. The instructions 1124 may be transmitted using the network interface device 1120 and any one of a number of well-known transfer protocols (e.g., HTTP). Examples of communication networks include a local area network (“LAN”), a wide area network (“WAN”), the Internet, mobile telephone networks, Plain Old Telephone Service (POTS) networks, and wireless data networks (e.g., WiFi and WiMax networks). The term “transmission medium” shall be taken to include any intangible medium that is capable of storing, encoding or carrying instructions for execution by the machine, and includes digital or analog communications signals or other intangible media to facilitate communication of such software.

Executable Instructions and Machine-Storage Medium

The various memories (i.e., 1104, 1106, and/or memory of the processor(s) 1102) and/or storage unit 1116 may store one or more sets of instructions and data structures (e.g., software) 1124 embodying or utilized by any one or more of the methodologies or functions described herein. These instructions, when executed by processor(s) 1102 cause various operations to implement the disclosed embodiments.

As used herein, the terms “machine-storage medium,” “device-storage medium,” “computer-storage medium” (referred to collectively as “machine-storage medium 1122”) mean the same thing and may be used interchangeably in this disclosure. The terms refer to a single or multiple storage devices and/or media (e.g., a centralized or distributed database, and/or associated caches and servers) that store executable instructions and/or data, as well as cloud-based storage systems or storage networks that include multiple storage apparatus or devices. The terms shall accordingly be taken to include, but not be limited to, solid-state memories, and optical and magnetic media, including memory internal or external to processors. Specific examples of machine-storage media, computer-storage media, and/or device-storage media 1122 include non-volatile memory, including by way of example semiconductor memory devices, e.g., erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), FPGA, and flash memory devices; magnetic disks such as internal hard disks and removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The terms machine-storage media, computer-storage media, and device-storage media 1122 specifically exclude carrier waves, modulated data signals, and other such media, at least some of which are covered under the term “signal medium” discussed below.

Signal Medium

The term “signal medium” or “transmission medium” in this disclosure shall be taken to include any form of modulated data signal, carrier wave, and so forth. The term “modulated data signal” means a signal that has one or more of its characteristics set or changed in such a matter as to encode information in the signal.

Computer Readable Medium

The terms “machine-readable medium,” “computer-readable medium” and “device-readable medium” mean the same thing and may be used interchangeably in this disclosure. The terms are defined to include both machine-storage media and signal media. Thus, the terms include both storage devices/media and carrier waves/modulated data signals.

Numbered Examples of Embodiments

The following numbered examples are embodiments.

1. A computer-implemented method comprising:

-   -   for a place, accessing, by a computer system having at least one         hardware processor, corresponding service data for each one of a         plurality of requests for a transportation service associated         with the place, the transportation service comprising         transportation of a requester of the request to or from the         place, the corresponding service data comprising an         identification of the place, pick-up data indicating a pick-up         location where the transportation of the requester began, and         drop-off data indicating a drop-off location where the         transportation of the requester ended;     -   accessing, by the computer system, corresponding sensor data for         each one of the plurality of requests, the corresponding sensor         data comprising a plurality of satellite signals indicating a         path of a mobile device of the requester, the path comprising a         pick-up path or a drop-off path, the pick-up path ending at the         pick-up location indicated by the pick-up data, the drop-off         path beginning at the drop-off location indicated by the         drop-off data, each one of the plurality of satellite signals         having a corresponding signal strength;     -   for each one of the plurality of requests, determining, by the         computer system, a transition geographic location for the         request based on the corresponding signal strengths of the         satellite signals indicating the corresponding path and a         satellite signal strength threshold, the satellite signal         strength threshold being configured to represent a point of         transition between an indoor location and an outdoor location;     -   determining, by the computer system, at least one transition         geographic location for the place based on the transition         geographic locations for the plurality of requests; and storing,         by the computer system, the at least one transition geographic         location for the place in a database in association with an         identification of the place.

2. The computer-implemented method of example 1, further comprising:

-   -   receiving, by the computer system, another request for the         transportation service associated with the place from a mobile         device of another requester, the other request comprising the         identification of the place;     -   identifying, by the computer system, the transition geographic         transition for the place based on a search of the database using         the identification of the place; and     -   transmitting, by the computer system, one of the at least one         transition geographic location of the place to at least one of         the mobile device of the other requester and a mobile device of         a provider of the transportation service of the other request.

3. The computer-implemented method of example 2, wherein:

-   -   the transportation service of the plurality of requests is for         transportation of the requester of the request to the place;     -   the determining the transition geographic location for the         request comprising determining the transition geographic         location for the request based on the corresponding signal         strengths of the satellite signals indicating the corresponding         drop-off path;     -   one of the at least one transition geographic location for the         place being stored as an ingress geographic location for the         place;     -   the transportation service of the other request comprising         transportation of the other requester to the place; and     -   the identifying the transition geographic location for the place         comprising identifying the one of the at least one transition         geographic transition for the place based on the transportation         service of the other request comprising transportation of the         other requester to the place and on the one of the at least one         transition geographic location for the place being stored as the         ingress geographic location for the place.

4. The computer-implemented method of example 2, wherein:

-   -   the transportation service of the plurality of requests is for         transportation of the requester of the request from the place;     -   the determining the transition geographic location for each one         of the plurality of requests comprising determining the         transition geographic location for the request based on the         corresponding signal strengths of the satellite signals         indicating the corresponding pick-up path;     -   one of the at least one transition geographic location for the         place being stored as an egress geographic location for the         place;     -   the transportation service of the other request comprising         transportation of the other requester from the place; and     -   the identifying the transition geographic location for the place         comprising identifying one of the at least one transition         geographic transition for the place based on the transportation         service of the other request comprising transportation of the         other requester from the place and on the one of the at least         one transition geographic location for the place being stored as         the egress geographic location for the place.

5. The computer-implemented method of example 4, further comprising selecting, by the computer system, the provider of the transportation service of the other request from amongst a plurality of providers based on a geographic location of the mobile device of the provider and the one of the at least one transition geographic location for the place.

6. The computer-implemented method of example 4, further comprising selecting, by the computer system, the at least one transition geographic location of the place based on at least one of a geographic location of the mobile device of the other requester and a geographic location of the mobile device of the provider, wherein the transmitting of the one of the at least one transition geographic location of the place comprises transmitting the one of the at least one transition geographic location of the place to at least one of the mobile device of the other requester and the mobile device of a provider of the transportation service of the other request for display in association with the other request for the transportation service.

7. The computer-implemented method of any of examples 1 to 6, wherein the determining the transition geographic location for the request comprises determining that a candidate geographic location indicated by the path associated with the request is not the transition geographic location based on elevation data indicating an elevation of the mobile device of the requester at the candidate geographic location.

8. The computer-implemented method of any one of examples 1 to 7, wherein the computer system comprises a remote server.

9. A system comprising:

-   -   at least one hardware processor; and     -   a machine-readable medium embodying a set of instructions that,         when executed by the at least one hardware processor, cause the         at least one hardware processor to perform the method of any one         of examples 1 to 8.

10. A machine-readable medium embodying a set of instructions that, when executed by the at least one hardware processor, cause the at least one hardware processor to perform the method of any one of examples 1 to 8.

Although an embodiment has been described with reference to specific example embodiments, it will be evident that various modifications and changes may be made to these embodiments without departing from the broader spirit and scope of the present disclosure. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense. The accompanying drawings that form a part hereof, show by way of illustration, and not of limitation, specific embodiments in which the subject matter may be practiced. The embodiments illustrated are described in sufficient detail to enable those skilled in the art to practice the teachings disclosed herein. Other embodiments may be utilized and derived therefrom, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. This Detailed Description, therefore, is not to be taken in a limiting sense, and the scope of various embodiments is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled.

Although specific embodiments have been illustrated and described herein, it should be appreciated that any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description. 

What is claimed is:
 1. A computer-implemented method comprising: accessing, by a computer system having at least one hardware processor, corresponding sensor data for each one of a plurality of requests for a transportation service comprising delivery of an item to or from a place, the corresponding sensor data comprising a plurality of satellite signals indicating a path of a mobile device of a provider of the transportation service corresponding to the one of the plurality of requests, the path having been walked by the provider before entering or after exiting a vehicle used by the provider to provide the transportation service; for each one of the plurality of requests, determining, by the computer system, a transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding path and a satellite signal strength threshold, the satellite signal strength threshold being configured to represent a point of transition between an indoor location and an outdoor location; determining, by the computer system, at least one transition geographic location for the place based on the transition geographic locations for the plurality of requests; and storing, by the computer system, the at least one transition geographic location for the place in a database in association with an identification of the place.
 2. The computer-implemented method of claim 1, wherein the path comprises a pick-up path ending at a pick-up location where the delivery of the item began.
 3. The computer-implemented method of claim 2, wherein the pick-up location is determined based on a selection of a selectable user interface element displayed on the mobile device of the provider.
 4. The computer-implemented method of claim 1, wherein the path comprises a drop-off path beginning at a drop-off location where the delivery of the item ended.
 5. The computer-implemented method of claim 4, wherein the drop-off location is determined based on a selection of a selectable user interface element displayed on the mobile device of the provider.
 6. The computer-implemented method of claim 1, further comprising: receiving, by the computer system, another request for the transportation service associated with the place from a mobile device of another requester, the other request comprising the identification of the place; identifying, by the computer system, the transition geographic transition for the place based on a search of the database using the identification of the place; and transmitting, by the computer system, one of the at least one transition geographic location of the place to at least one of the mobile device of the other requester and a mobile device of a provider of the transportation service of the other request.
 7. The computer-implemented method of claim 6, wherein: the determining the transition geographic location for the request comprises determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding drop-off path; and one of the at least one transition geographic location for the place is stored as an ingress geographic location for the place.
 8. The computer-implemented method of claim 6, wherein: the determining the transition geographic location for each one of the plurality of requests comprises determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding pick-up path; and one of the at least one transition geographic location for the place is stored as an egress geographic location for the place.
 9. The computer-implemented method of claim 6, further comprising selecting, by the computer system, the provider of the transportation service of the other request from amongst a plurality of providers based on a geographic location of the mobile device of the provider and the one of the at least one transition geographic location for the place.
 10. The computer-implemented method of claim 1, wherein the item comprises food.
 11. A system comprising: at least one hardware processor; and a machine-readable medium embodying a set of instructions that, when executed by the at least one hardware processor, cause the at least one hardware processor to perform operations comprising: accessing corresponding sensor data for each one of a plurality of requests for a transportation service comprising delivery of an item to or from a place, the corresponding sensor data comprising a plurality of satellite signals indicating a path of a mobile device of a provider of the transportation service corresponding to the one of the plurality of requests, the path having been walked by the provider before entering or after exiting a vehicle used by the provider to provide the transportation service; for each one of the plurality of requests, determining a transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding path and a satellite signal strength threshold, the satellite signal strength threshold being configured to represent a point of transition between an indoor location and an outdoor location; determining at least one transition geographic location for the place based on the transition geographic locations for the plurality of requests; and storing the at least one transition geographic location for the place in a database in association with an identification of the place.
 12. The system of claim 11, wherein the path comprises a pick-up path ending at a pick-up location where the delivery of the item began.
 13. The system of claim 12, wherein the pick-up location is determined based on a selection of a selectable user interface element displayed on the mobile device of the provider.
 14. The system of claim 11, wherein the path comprises a drop-off path beginning at a drop-off location where the delivery of the item ended.
 15. The system of claim 14, wherein the drop-off location is determined based on a selection of a selectable user interface element displayed on the mobile device of the provider.
 16. The system of claim 11, wherein the operations further comprise: receiving another request for the transportation service associated with the place from a mobile device of another requester, the other request comprising the identification of the place; identifying the transition geographic transition for the place based on a search of the database using the identification of the place; and transmitting one of the at least one transition geographic location of the place to at least one of the mobile device of the other requester and a mobile device of a provider of the transportation service of the other request.
 17. The system of claim 16, wherein: the determining the transition geographic location for the request comprises determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding drop-off path; and one of the at least one transition geographic location for the place is stored as an ingress geographic location for the place.
 18. The system of claim 16, wherein: the determining the transition geographic location for each one of the plurality of requests comprises determining the transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding pick-up path; and one of the at least one transition geographic location for the place is stored as an egress geographic location for the place.
 19. The system of claim 16, wherein the operations further comprise selecting the provider of the transportation service of the other request from amongst a plurality of providers based on a geographic location of the mobile device of the provider and the one of the at least one transition geographic location for the place.
 20. A non-transitory machine-readable medium embodying a set of instructions that, when executed by at least one hardware processor, cause the at least one hardware processor to perform operations comprising: accessing corresponding sensor data for each one of a plurality of requests for a transportation service comprising delivery of an item to or from a place, the corresponding sensor data comprising a plurality of satellite signals indicating a path of a mobile device of a provider of the transportation service corresponding to the one of the plurality of requests, the path having been walked by the provider before entering or after exiting a vehicle used by the provider to provide the transportation service; for each one of the plurality of requests, determining a transition geographic location for the request based on the corresponding signal strengths of the satellite signals indicating the corresponding path and a satellite signal strength threshold, the satellite signal strength threshold being configured to represent a point of transition between an indoor location and an outdoor location; determining at least one transition geographic location for the place based on the transition geographic locations for the plurality of requests; and storing the at least one transition geographic location for the place in a database in association with an identification of the place. 